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1395469 is a prime number
BaseRepresentation
bin101010100101100001101
32121220020001
411110230031
5324123334
645524301
714601265
oct5245415
92556201
101395469
11873489
12573691
1339b22a
142847a5
151c8714
hex154b0d

1395469 has 2 divisors, whose sum is σ = 1395470. Its totient is φ = 1395468.

The previous prime is 1395467. The next prime is 1395481. The reversal of 1395469 is 9645931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1368900 + 26569 = 1170^2 + 163^2 .

It is an emirp because it is prime and its reverse (9645931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1395469 - 21 = 1395467 is a prime.

It is a super-2 number, since 2×13954692 = 3894667459922, which contains 22 as substring.

Together with 1395467, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1395463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 697734 + 697735.

It is an arithmetic number, because the mean of its divisors is an integer number (697735).

21395469 is an apocalyptic number.

It is an amenable number.

1395469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1395469 is an equidigital number, since it uses as much as digits as its factorization.

1395469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 37.

The square root of 1395469 is about 1181.2997079488. The cubic root of 1395469 is about 111.7480785487.

The spelling of 1395469 in words is "one million, three hundred ninety-five thousand, four hundred sixty-nine".